Y36.A1 — Low level blast overpressure in war operations
Is Y36.A1 billable?
No — Y36.A1 is a non-billable header code. Y36.A1 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 3 billable codes beneath Y36.A1.
Y36.A1 at a glance
| Code | Y36.A1 |
|---|---|
| Description | Low level blast overpressure in war operations |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
How is Y36.A1 listed in the External Cause Index?
These are the routes through the External Cause of Injuries Index that lead to Y36.A1 — how the injury happened, rather than what the injury was.
- War operations › LLB overpressure (injuries to military personnel and civilians during war, civil insurrection and peacekeeping missions) (by) (from) (involving)
- War operations › blast overpressure › low level (injuries to military personnel and civilians during war, civil insurrection and peacekeeping missions) (by) (from) (involving)
Inclusion terms
Alternative wording in documentation that is classified to Y36.A1.
- LLB overpressure in war operations
- Low level blast overpressure due to explosion in war operations
Excludes1 — never code together — inherited from Y36
The conditions below can never be reported together with Y36.A1 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Code also — inherited from Y36.A
Two codes may be needed to describe the condition fully. Whether Y36.A1 is sequenced first depends on the reason for the encounter.
What codes fall under Y36.A1? (3)
How long has Y36.A1 existed?
Y36.A1 first appears in FY2026.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.